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Each week we'll be posting several questions from The Official Guide For GMAT® Quantitative Review, 2ND Edition and then after couple of days we'll provide Official Answer (OA) to them along with a slution.

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From question stimulus:10nx=tFrom S1:x=n+3.Insufficient as we want absolute value of both n and x.From S2:x=16.Insufficient as it doesn't provide value of nCombining the 2 statements,we get x=16 and n=13.Hence,we can find out t.Ans.C